1 files changed, 51 insertions, 0 deletions
diff --git a/tests/fuzz/crypt2_load_proto_fuzz.cc b/tests/fuzz/crypt2_load_proto_fuzz.cc
new file mode 100644
index 0000000..498c006
--- /dev/null
+++ b/tests/fuzz/crypt2_load_proto_fuzz.cc
@@ -0,0 +1,51 @@
+/*
+ * cryptsetup LUKS2 custom mutator fuzz target
+ *
+ * Copyright (C) 2022-2023 Daniel Zatovic <daniel.zatovic@gmail.com>
+ * Copyright (C) 2022-2023 Red Hat, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "LUKS2.pb.h"
+#include "proto_to_luks2_converter.h"
+#include "libfuzzer/libfuzzer_macro.h"
+#include "FuzzerInterface.h"
+
+extern "C" {
+#include <libcryptsetup.h>
+#include <err.h>
+#include <fcntl.h>
+#include <unistd.h>
+}
+
+DEFINE_PROTO_FUZZER(const LUKS2_proto::LUKS2_both_headers &headers) {
+  struct crypt_device *cd = NULL;
+  char name[] = "/tmp/test-proto-fuzz.XXXXXX";
+  int fd = mkostemp(name, O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC);
+
+  if (fd < 0)
+    err(EXIT_FAILURE, "mkostemp() failed");
+
+  LUKS2_proto::LUKS2ProtoConverter converter;
+  converter.convert(headers, fd);
+
+  if (crypt_init(&cd, name) == 0)
+    (void)crypt_load(cd, CRYPT_LUKS2, NULL);
+  crypt_free(cd);
+
+  close(fd);
+  unlink(name);
+}